Why Is My Sourdough Starter Not Rising? (And How to Fix It!)

TL;DR: If your sourdough starter not rising, it could be too young, too cold, poorly fed, or suffering from bad flour or water. Don’t toss it—learn how to fix your slow starter with these simple, beginner-friendly tips!

If you just started your sourdough journey—bless your heart—you’re doing something wonderful. But brand-new starters take time to get their groove.

A fresh starter needs about 7–14 days to get bubbly and active. Sometimes even longer, especially if your kitchen’s a little chilly. If you’re only a few days in and not seeing much action, keep feeding it, stay patient, and trust the process.

Quick Fix: Keep feeding your starter once a day (or twice if it's looking sleepy). It’ll get there, promise!

Sourdough is like a good ol’ Southern grandma—it loves to be warm and cozy. If your kitchen is colder than an icebox (below 70°F/21°C), your starter might be movin’ real slow.

• Place it in a warm spot, like on top of your fridge, inside the oven with the light on (but NOT turned on!), or near a sunny window.
• Wrap it in a kitchen towel or set the jar inside a bowl of warm water (not too hot, or you’ll cook it!).
• Use warm water (about 80°F/27°C) when feeding to give it a little boost.

If you’re in a colder climate, patience is key—but a little warmth can do wonders!

Your starter is a living thing! Just like a growing child, it needs the right balance of food and water to thrive.

Common Feeding Mistakes:

• Too much flour, not enough water – Makes it stiff and hard for bubbles to form. Use a 1:1:1 ratio by weight (starter:water:flour). It should look like thick pancake batter.
• Not feeding it enough – If it smells like old socks or vinegar, it’s hungry! Feed it twice a day until it perks up.
• Overfeeding it – Feeding too often without letting it rise and fall weakens it. Give it time between feeds.

Pro Tip: Whole wheat or rye flour makes your starter extra happy—it has more nutrients and wild yeast than white flour.

Not all flour is created equal, darlin’. If your starter is actin’ lazy, your flour might not be givin’ it what it needs.

Best Flour Choices for a Strong Starter:

• Whole wheat or rye flour – Full of wild yeast and great for fermentation.
• Unbleached, organic flour – No harsh chemicals to interfere with growth.
• A mix of white and whole wheat – The best of both worlds!

• Bleached flour – Contains chemicals that can weaken the starter.
• Self-rising flour – Has baking powder that interferes with fermentation.

If you’re using plain white flour and your starter is slow, try switching to rye or whole wheat for a few feedings!

Water might seem simple, but if your tap water has chlorine in it, it could be slowing your starter down.

How to Fix Water Issues:

• Use filtered or spring water if possible.
• If using tap water, let it sit out for 24 hours to let the chlorine evaporate.

Pro Tip: Don’t use distilled water—it lacks the minerals your starter needs to thrive.

If your starter is trapped in a tiny jar with no space to grow, it might not be rising because it has nowhere to go!

Best Container Tips:

• Use a large glass jar so it has room to double in size.
• Cover it loosely with a lid or cloth—too tight and it can’t breathe; too open and it dries out.

Life happens, we get it! If your starter looks gray, sluggish, or just plain sad, don’t worry—it might just need a revival.

How to Revive It:

• Discard most of it, leaving about 1 tablespoon.
• Feed it twice a day with fresh flour and water.
• Within a few days, it should start bubbling back to life!

Warning: If it smells rotten, has mold, or turns pink/orange—toss it and start over.

Sometimes your starter is rising, but it’s collapsing before you check on it. That means it’s hungry and needs more frequent feedings.

How to Fix It:

• Feed it more often—every 12 hours instead of 24.
• Try a 1:2:2 feeding ratio (1 part starter, 2 parts water, 2 parts flour).
• Track growth by marking the jar with a rubber band.

Sourdough is all about patience, darlin’. Even if your starter seems as stubborn as a mule, keep adjusting, keep feeding, and before you know it—it’ll be rising tall and proud.